﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace rbrft
{
    class Program
    {
        static void Main(string[] args)
        {
            ISwim dog = new dog();
            ff(dog);
            Iclimb cat = new cat();
            hh(cat);
        }

        static void ff(ISwim swim)
        {
            swim.Swim();
        }
        static void hh(Iclimb climb)
        {
            climb.climb();
        }
    }
}
